某发动机惰轮支架设计应用

Application Design of an Idler Bracket for a Particular Engine

为了提升汽车操控舒适性,某车型需求开发电动助力转向系统(EPS),取消机械式液压助力转向泵,对原有发动机前端轮系进行重新开发匹配。由于发动机已量产,前端轮系大改势必会造成大量研发成本的投入,为节约成本和平台通用化考虑,轮系采用了惰轮与惰轮支架的组合应用。从惰轮支架的设计思路、布置边界合理化分析、试验验证、断裂失效优化等方面介绍了其中惰轮支架的设计应用。

In order to improve auto handling comfort, an electric power steering （EPS） was needed to develop for a particular vehicle abolishing any mechanical-hydraulic power steering pump. The development and matching of original engine FEAI） were perfbrmed again. A lot of R ＆ D costs and investment were certainly increased by a significant chauge in FEAD due to mass production of engine. A combination application of idler and idler bracket was adopted in eonsideration of cost saving and platform generalization. The design application of idler bracket is introduced in terms of design thinking, rationalization analvsis of lavout boundary, test validation and fracture failure nplimization, and etc.